Dr. Constantine Ioannou
- Gender: Male
- Experience: 36 years
- Graduation year: 1985
- Sole propriator: Yes
- NPI: 1124124003
Dr. Constantine Ioannou M.D.
Psychiatrist
He is located at 2201 Hempstead Tpke Nassau University Medical Center in East Meadow, NY 11554. Can help patients with the following: Hypersomnia, Isolation, Learning Disability, Narcissistic Personality Disorder (NPD), Postpartum Depression (PPD), Relationship Issues. His National Provider Identifier (NPI) number is 1124124003. Appointment can be made via the phone number (516) 572-6511. He also has a website where you can get more information. The website can be found at https://www.stonybrookmedicine.edu/profile?pid=898&name=Constantine%20Ioannou%20MD. He is affiliated with 1 practices.
Conditions treated
Dr. Constantine Ioannou, being an psychiatrist, treats the following conditions. Please be advised that this list may not be complete. For the full list of conditions treated, consult directly with Dr. Constantine Ioannou.
- Amnesia
- Anorexia Nervosa
- Antisocial Personality Disorder (ASPD)
- Anxiety
- Aphasia
- Asperger Syndrome (AS)
- Attention-Deficit/Hyperactivity Disorder (ADHD)
- Autism
- Avoidant Personality Disorder
- Binge Eating Disorder
- Bipolar Disorder
- Body Dysmorphic Disorder (BDD)
- Borderline Personality Disorder (BPD)
- Bulimia Nervosa
- Dementia
- Depression
- Dissociative Fugue
- Dissociative Identity Disorder
- Drug Abuse
- Eating Disorder
- Fragile X Syndrome (FXS)
- Grief
- Hypersomnia
- Insomnia
- Isolation
- Learning Disability
- Mental Illness
- Mood Disorders
- Munchausen Syndrome
- Narcissistic Personality Disorder (NPD)
- Obsessive Compulsive Disorder (OCD)
- Online Therapy
- Panic Disorder
- Persistent Depressive Disorder
- Pervasive Developmental Disorders (PDD)
- Phobias
- Postpartum Depression (PPD)
- Posttraumatic Stress Disorder (PTSD)
- Premenstrual Dysphoric Disorder (PMDD)
- Psychotic Disorder
- Rape and Sexual Assault
- Relationship Issues
- Schizoaffective Disorder
- Schizophrenia
- Seasonal Affective Disorder (SAD)
- Sleepwalking
- Speech Disorders
- Stress
- Tardive Dyskinesia
- Tics
- Trauma
- Wilson-Turner Syndrome
Medicare Enrollment
Dr. Constantine Ioannou is enrolled to bill Medicare as a Practitioner - Psychiatry .
Bills through: Nassau Health Care Corporation
Based on Medicare's public enrollment records as of Jul 17, 2026. This reflects Medicare fee-for-service enrollment only and says nothing about other insurance, quality, outcomes, or board certification.
Studies
Graduated in 1985Other ways to reach out
- Website: https://www.stonybrookmedicine.edu/profile?pid=898&name=Constantine%20Ioannou%20MD
Looking for more Psychiatrists?
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- Gender: Male
- Address: 2201 Hempstead Turnpike East Meadow, 11554, NY
- Gender: Male
- Address: 2201 Hempstead Turnpike East Meadow, 11554, NY
- Gender: Female
- Address: 2201 Hempstead Turnpike East Meadow, 11554, NY
- Gender: Female
- Address: 2201 Hempstead Turnpike East Meadow, 11554, NY
- Gender: Male
- Address: 2201 Hempstead Turnpike East Meadow, 11554, NY
- Gender: Female
- Address: 2201 Hempstead Turnpike East Meadow, 11554, NY
- Gender: Male
- Address: 2201 Hempstead Turnpike East Meadow, 11554, NY
- Gender: Female
- Address: 2201 Hempstead Turnpike East Meadow, 11554, NY
- Gender: Male
- Address: 2201 Hempstead Turnpike East Meadow, 11554, NY
- Gender: Female
- Address: 2201 Hempstead Turnpike East Meadow, 11554, NY
Questions & Answers
Does Dr. Constantine Ioannou accept insurance?
Unfortunately we don't have any information if Dr. Constantine Ioannou accepts insurance.
Where can you meet with Dr. Constantine Ioannou?
Dr. Constantine Ioannou's office is located at 2201 Hempstead Tpke Nassau University Medical Center in East Meadow, NY 11554.
Does Dr. Constantine Ioannou have affiliation with practices?
Dr. Constantine Ioannou is affiliated with Stony Brook Psychiatric Associates University Faculty Practice Corpor.
What conditions does Dr. Constantine Ioannou treat?
Dr. Constantine Ioannou provides treatment for Hypersomnia, Isolation, Learning Disability, Narcissistic Personality Disorder (NPD), Postpartum Depression (PPD), Relationship Issues. For the full list see this list.